Speaking specifically about the crush, Conor reached up with the wrong hand. I’m not sure he knew what he was going to try to do anyway, but when someone has a gable grip choke or crush on you, as opposed to the classic mata leon RNC where you reach up & fight their top hand, with a gable grip choke or crush you have to reach up with your same-side hand as the grip, grab their top hand by the thumb area, & peel open the gable grip, it should come right off. Then your other hand swims under the remaining choking arm, with your own palm swimming over your face.
Easier said than done of course, but it’s a very effective escape to a gable choke or crush.